Illinois is a state in the Midwestern United States. It is the 5th most populous and 25th most extensive state, and is often noted as a microcosm of the entire country. Wikipedia

Boulder is the county seat and most populous city of Boulder County and the 11th most populous city in the U.S. state of Colorado. Boulder is located at the base of the foothills of the Rocky Mountains at an elevation of 5,430 feet. The city is 25 miles northwest of Denver. Wikipedia